Moment of Eighteen

Ong Seong-wu

Choi Joon-Woo

Kim Hyang-gi

Yoo Soo-Bin

신승호

Ma Whi-Young

강기영

Oh Han-Kyeol

심이영

Joon-Woo's mother

김선영

Soo-Bin's mother

최재웅

Choi Myeong-jun

문빈

Jung Oh-je

정영주

Park Geum-ja

Jung Hyeon-jun

Choi Joon-Woo (young)

유인수

Yoo Pil-Sang

한성민

Hwang Ro-mi

김보윤

Kwon Da-hwin

Moon Joo-yeon

Yoon So-ye

백재우

Go Dong

허영지

Kim Ji-min

김광식

[Oh Je's father]

이도현

[Sang Hoon's father]